During an earthquake, significant damage can result due to instability of the soil in the area affected by internal seismic waves. A liquefaction-induced lateral ground displacement has been a very damaging type of ground failure during past strong earthquakes. In this study, neuro-fuzzy group method of data handling (NF-GMDH) is utilized for assessment of lateral displacement in both ground sl...

According to historical documents and Moroccan earthquakes catalogs, the coastal zone has suffered in past from several earthquakes. Understanding how sedimentary basins respond seismic-wave energy generated by earthquake events is a significant concern for seismic-hazard estimation risk analysis. The main goal of this study determine distribution natural frequency value (F), amplification fact...

This paper investigates the effect of micropile installation into saturated sandy soil by means of finite element method. The obtained results from numerical modeling are compared with the received data from the site. The validation of software has been done by simulating standard penetration test. The effect of some changes in spacing (3m, 1.6m and 0.8m) and injection pressure (1cm, 2.5cm, 5cm...

As one of the significant phenomena in earthquake geotechnical engineering, liquefaction can cause severe damages. A number of factors play a role in the occurrence of liquefaction such as magnitude of earthquake, void ratio, relative density, and fines content percentage. The impact of building construction overburdens on liquefaction is of paramount importance. The present study was aimed at ...

Abstract Liquefaction on bridges can cause structural failure due to loss of soil strength. The Showa Bridge that collapsed in 1964 Niigata earthquake was caused by buckling piles as the layer liquefied and friction losses. In addition, there a case Palu IV bridge collapse Indonesia during recent 2018 earthquake, which indicated have been affected earthquakes liquefaction. This study examines r...

In this study, it is attempted to analyze sensitivity and reliability in order to evaluate the liquefaction potential in soil layers in Tabriz. 62 boreholes that had possible conditions for liquefaction were selected. Seismic mapping was simulated using finite fault method and then the effect of soil layers on PGA was estimated. In continue, the liquefaction potential index was estimated and th...

Abstract The east of Cali is composed loose sand deposits with high water table levels. This condition and the seismic hazard city make cyclic liquefaction one main hazards in city, which may affect more than 600,000 citizens important infrastructures such as city’s drinking treatment plants. Therefore, it was decided to design implement a monitoring center study behavior liquefiable soils unde...